Decide whether the statement is true or false.
is irrational.
A. True
B. False
Answer: B
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Write a chain rule formula for the following derivative.
for w = f(x, y, z); x = g(r, s, t), y = h(r, s, t), z = k(r, s, t)
A. 
= 
+ 
+ 
B. 
= 
+ 
C. 
= 
+ 
+ 
D. 
= 
+ 
+ 
Solve the problem.The pulse rate for a species of small mammal follows a normal distribution with a mean 
beats per minute and standard deviation 
beats per minute. In a population of 1000 of these mammals, how many would you expect to have a pulse rate between 195 and 243?
A. ? 540 of these mammals B. ? 500 of these mammals C. ? 480 of these mammals D. ? 690 of these mammals
Solve the problem. Assume all data are accurate to two significant digits unless greater accuracy is given.Two pieces of equipment were purchased for a total of $2000. If one piece cost $810 more than the other, find the price of the less expensive piece of equipment.
A. $600 B. $595 C. $1400 D. $1405
Solve the problem.A surveyor standing 70 meters from the base of a building measures the angle to the top of the building and finds it to be 35°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 50°. How tall is the radio tower?
A. 13.47 m B. 12.35 m C. 34.41 m D. 18.76 m